London: Family members of parents-to-be Prince William and his wife Kate are confident that the couple will carry out their parental duties very well. Willam’s cousin Peter says that both would-be parents will come out to be great mother and father than expected.

"First and foremost, everyone is ecstatic for both," a website quoted Prince William's cousin Peter Phillips as saying in an interview.

Phillips said the newborn will be a playmate for his own daughters.

"They will make great parents and it's great to be able to welcome another child into the family, if not from a selfish perspective for my two girls to be able to grow up with a playmate," Phillips added.